The business of online radio is more sophisticated than its over-the-air ancestor. Consider, for example, the info available on the Net about each listener.
Pandora, Slacker, Lala (bought & closed by Apple), Last.fm and Rdio have all brought new twists to radio. The trail of Internet-inspired radio pioneers (many with arrows in their backs) is long.
With Internet radio innovators Mark Ramsey and Patrick Reynolds, let's discuss:
* Who are the players in online radio? How big is the market? Growth rate?
* How have advertisers responded? What problems does this solve for them?
* Will Apple or Google jump in more? What might bandwidth caps do?